PWM allows for more precise control of fan speed, resulting in quieter operation when the system is not under heavy load. But a 3-pin fan has to draw a minimum of 5 volts at all times. If the current drops below that, the fan motor will die. So on an idling PC, you’ll be wasting power. A PWM fan, by comparison, can run at extremely slow speeds. Not only will this save power, but it reduces wear and tear on your fan.

The brand Evercool is the epitome of trust to many PC builders. The PC hardware produced by them has gathered much praise lately. The Cable Matters PWM Fan Splitter Cable is a simple three-way splitter. There’s a 4-pin connection at the base, with three 12-inch wires protruding from it. Each is tipped with a 3-pin connector, which can plug into a 3-pin or 4-pin fan. Keep in mind that the speed pin only works on the main connector. In other words, all three fans will run at the same speed, be that fast or slow. PWM, which is short for “Pulse Width Modulation,” and it works completely differently. Instead of receiving a variable voltage, the fan receives a 12-volt current at all times. However, the current isn’t delivered consistently. The computer sends out short pulses of power every few milliseconds. The closer the pulses are together, the faster the fan spins. The further apart they are, the slower the fan moves.

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Opt for a fan splitter with cables long enough to easily reach your fans without causing strain or cable clutter.

However, remember that aesthetics should not compromise the functionality or performance of the fan splitter. Third on our list was the RISHTEN Fan Splitter Hub. This hub is unique in a couple of ways. To begin with, you can connect up to five fans, which is more than any of the others. For another thing, one of these connections is for your CPU fan, which can simplify your wiring. Finally, it’s a flat hub that can adhere to the inside of your case. In a transparent case, this looks sharper than a basic splitter. Moreover, if you avoid fiddling, then this cable can be long-lasting, which ultimately makes it a great option. What is a PC Fan Splitter? As you can see, all four of these cables could be the best choice, depending on your build. But which one is the optimal choice for yours? Let’s go over what we learned about each one. In most cases, this works very well. The fans run at a moderate speed most of the time, and speed up when the system is under a load. However, newer PWM fan controllers can slow your fans down even further when the system is idle. This is an excellent power saving feature. So what do you do if you want to use PWM technology or add additional fans to your build? You use a splitter cable.

Consider the power requirements of your fans and the power delivery capabilities of the fan splitter. In my testing, I found that the fans connected to the splitters function seamlessly. There were no issues with the RPM as all of the fans ran at the same speed. No variations were there.

If minimizing noise is a priority, look for a fan splitter that supports PWM (Pulse Width Modulation) control. If aesthetics matter to you, consider selecting a fan splitter that matches the color scheme of your PC build. We’re about to review four of the best PWM fan splitter cables we were able to get our hands on. There are several features to look for on each one. If you want the basics, here’s what you need to know:

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Certain fan splitters also offer the ability to monitor fan RPM (revolutions per minute) or display the fan speed on an LCD screen. If you want to have control over the speed of your fans, consider a fan splitter with built-in speed control. The installation process was easy. I tell you, with this fan splitter cable, you’ll be having the cleanest possible outlook inside your rig. It lets you connect the fans with ease at random places around the motherboard. Consider the warranty period offered by the manufacturer to ensure you're protected against any defects or malfunctions. Besides, all of the fan connectors are 3 pins, making it an excellent option for a gaming build requiring multiple 3pin fans.

So these are the seven best fan splitter cables that you can buy from the market. My list includes all types of options, so I think you don’t need to look at them anywhere else. These seven are enough to choose from and connect 4 pin or 3 pin fans or whatever you want.

Final Verdict

When selecting a PC case fan splitter, consider the size of your fans and the number of fans you plan to connect to the splitter. Before we finish, let’s take a minute to discuss what a PWM fan is, compared to a traditional 3-pin fan. A traditional 3-pin fan is controlled by the motherboard or fan controller by adjusting the voltage. They can draw between 5 and 12 volts, depending on the system’s needs. A 5-volt current will cause the fan to run slower. The more current is supplied, the faster the fan will spin and the more cooling it will provide. You might think that PWM fans are designed to improve PC performance, but that’s not the case. In fact, a 3-pin fan is every bit as good at cooling your PC as a PWM fan. Instead, PWM fans are designed to improve power efficiency when your system is idling. In this situation, your PC doesn’t need nearly as much cooling as it normally does. The best part is that this cable comes with 4 pin Molex connectors, which is rare among most options. Flexible cables make it easier to route them neatly through your PC case for improved cable management.